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Home/Products/Harmonai ACT-920 Dual-Channel True Diversity Wireless Microphone — 500m Ultra-Long-Range UHF System
Harmonai ACT-920 Dual-Channel True Diversity Wireless Microphone image 1

Harmonai ACT-920 Dual-Channel True Diversity Wireless Microphone — 500m Ultra-Long-Range UHF System

The Harmonai ACT-920 is a professional dual-channel true diversity wireless microphone system operating in the UHF 560–680 MHz band with 400 selectable channels and up to ~500 mete...

$124.26
Model
ACT-920
Category
Microphones
Images
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Status
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Supplier

Harmonai

Generated onJune 10, 2026
Harmonai ACT-920 Dual-Channel True Diversity Wireless Microphone image 1

Product Brief

Harmonai ACT-920 Dual-Channel True Diversity Wireless Microphone — 500m Ultra-Long-Range UHF System

Overview

The Harmonai ACT-920 is a professional dual-channel true diversity wireless microphone system operating in the UHF 560–680 MHz band with 400 selectable channels and up to ~500 mete...

Price
$124.26
Model
ACT-920
Category
Microphones

Specifications

Specifications

ParameterValue
Frequency Range560–680 MHz
Operating Bandwidth120 MHz
Number of Channels400
Channel Spacing300 kHz
Modulation MethodPure digital DQPSK modulation with digital encrypted ID
Effective Transmission DistanceApprox. 500 meters (subject to environmental conditions)
Signal-to-Noise Ratio (SNR)>100 dB
Operation MethodHuman-machine interactive encoder operation
Receiver DisplayDual 2.4-inch color LCD synchronized display
Power Input5 V / 2 A (Type-C interface)
Frequency Synthesis MethodPLL phase-locked loop frequency synthesis
Transmitter Output Power10 mW
Frequency Tolerance±10 kHz
Transmitter Display0.96-inch high-definition color display (portrait & landscape modes)
Frequency SynchronizationInfrared synchronization
Microphone Types SupportedHandheld dynamic / Conference lavalier / Headset condenser
Transmitter Power SupplyTwo AA batteries
Continuous Operating TimeOver 6 hours
Audio Outputs2× XLR balanced (per channel) + 1× 6.35 mm unbalanced (mixed output) + 1× XLR balanced (mixed output)
Antenna TerminalsDual-path true diversity with four antenna connectors
HarmonAIPage 1 / 1

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

  • Business hours: Monday to Friday 09:00 - 18:30
  • Inquiry channels: phone / email / website form
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Contact

Mobile: +86 135 6792 0078

Business email: Sales@frog-is.com

Office

Address: Unit 2, Liandong U Valley, Yinzhou District, Ningbo, Zhejiang

Hours: Monday to Saturday 09:00 - 18:30

Services

Professional audio, conference sound, wireless microphones and commercial AV integration

Harmonai is the global trade platform of Frog-is Acoustic Systems